package cn.dubito.springboot.learning.utils;

import java.util.Random;

/**
 * @author liliang
 * @description:
 * @date 2018/1/13.
 */
public class KeyUtil {

    /**
     * 生成唯一的主键
     * @return
     */
    public static synchronized String genUniqueKey() {
        Random random = new Random();
        Integer number = random.nextInt(900000) + 100000;
        return System.currentTimeMillis() + String.valueOf(number);
    }

    public static void main(String[] args) {
        System.out.println(genUniqueKey());
    }
}
